Use C99 standard bool type instead of locally defined one.

Check for types in configure pass.
Fix a warning related to nfc_reader_select() (a length - uiInitDataLen - was set by NULL instead of 0).

src/dev_acr122.h

@@ -22,6 +22,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define _LIBNFC_DEV_ACR122_H_
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #include "defines.h"
 #include "types.h"